IMHO Hypertech Power Programer is expensive junk. My 02 had a HPP sticker on the door when I bought it used from a dealership (6 months ago). 1st time I went for a full throttle upshift it stumbled really bad at around 5500. Other than that it ran fine. One of my friends has HPTuners (full suite) and licenses for 2000 & 2001 (he has an 01 WS6). I had him check what was wrong with my car. Turns out someone had set upshift at 6400 and rev limiter at 5500 (HPP reflash?). I ended up buying a license for 2002. When it arrived, he retuned/adjusted everything that needed it. We ran the car at full throttle on a freeway onramp data logging while driving. After adjusting things 4 or 5 times the car ran awsomely! Good as a dynotune? In short, no, but now I can adjust for gear ratio (when I do 3.73's), tire size (if I do tires/rims), delete/adjust codes for when I delete AIR and rear O2's when I do headears, etc., etc.
Last edited by 67RSSS; 10-09-2005 at 01:45 AM.